Eco-warrior Matthew Modine wants kids to get on their bikes and pedal to school.The Full Metal Jacket star fears Americans are too wasteful when it comes to gasoline and he'd like the government to be more forceful about rationing fuel. He tells Paper magazine, "I would ban any frivolous use of gasoline. I would also enforce gas rationing on all citizens, encouraging carpooling and investment in the infrastructure of our country with light rail, trains and trolley systems. "(And we should be) encouraging young people to ride bikes to school instead of buses and cars."